Tunneling-machine.



b" HOAR. TUNNELING MACHINE. APPLlcATmN msn ma. 9, 191s.

Patented Nov. 28, 1916.

3 SHEETS-SHEET i.'

IN VEN TOR.

WITNESSES M272@ e i W A TTORNE Y.

S. IIIIAR.

TUNNELING MACHINE.

APPLICATION FILED III/III. 9, I916.

3 SHETS-SHEET 2.

Patented Nov. 28, 1916.

INVENTQR.

BY .5% mm I ATTORNEY.

W'TNESSES:

fl if S. HOAR.

TUNNELING'MACHINE.

Mmc/mou man nu. s. 191s.

Patented Nov. 28, 1916.

3 SHEETS-SHEET 3.

br FEL/00060 IN VEN TOR.

W1 TNESSES BY m A TTORNEY.

BEST AVAILABLE con#y l meegaat;

'-"Toollmay concern: A f y yBe"""itknown that'llr SAMUEL HoAn, a citizen .of the United States, residing at Virginitigfin 4the-"county of St. Louis and `Statali "Minnesota, have invented certain 'Anein#andfiiseful Improvementsin Tunneling lifacliines',v rot which the following yis a spi icatio'n7 reference being had therein to the ccompa'nying drawing.: lQ "f his "invention,consists 'Rif i certain im- VAprev ciments in tunneling machines and relates' particularly 'to such machines adapted tol Ore 'mining and wherein the ore or refuse in a tunnel is shoveledA intotram cars. for

reinoval'therefrom. v y

The' object is to provide a'practical7 cheap and As iilLicient machine. of' this character;

\"Otlier ohjectsiand advantages will appear iirtlie further descriptionof 'the device.v 2 9 lirthe accompanying `drawings forming part olithis" api'ilici'ition and in which like reference* characters represent'lilie parts: li ure 1 a side elevation of the improved tunneling machine. lig. 2 V1s a top yplan vieuof same. lfigg is a rear end elevation illustrating'the shovel as operating at right angles tothe 4position shown in Fig. l." Fig. isa cross sectional view of the chassis eh jatingdevice. 5 is a ragmental cross 4sectionalview'of the rearr leg supportiii'gdevi e, and, Fig. G is a fragmental cross Vs'ectil'inal"view partly in perspective kof the recipinealr carriage lconnection withy the ciiassi i The chassis of the ina'chine is preferably t" fabricatedmetal construction, comprisi etl'ietwo inclinedV elevated' members l-l d l endl meniher 2, they heing firmly "iiinited id fern-ung thre'esides of a recjt ngula upport for the shovel and itsopcrfitting-i. yclianisinf The front end of 'they 'in vedescrihed frame is supp irte d upon ne endxfian'ie 5l, rigidly fixed thereto.I and `nountedupon 'an axle 4, carrying Wheels andwl'iich are designed to traverse the am 'traclias usually found iny tunnels ot' haracter. 'Therear end of the main 'i i me is suiii'iorted.'upon two legs (3 6, they boing piielieralily ei' channel iron and rigidly ckelsi'f. Y i. u, xill'rithin vthe lowern'iost end of each leg 6 st, iircl'v fixed hyv means of liolts'F-B a tal bearing block l) havingr formed `In the wcrini'ostend thereof an inverted Ueshaped Speciationof Letters lat'ent.

ced'to the main frame hy suitable h .ring 1.0 which is designed to rest upon TUNNELiNG-MACHINL.

which carries wheels 12%12, designed to Patented N ov;28,i1916."1 Application filed March 9; 1916. Serial No. 83,055. i `A i traverse the trani -l rack siinullaneouslyl with e the forward wheels Above thebeurl body of` the channel (i isl foruieda hole1 ing .1() and through boththe block l) andthe `j in which securely held bythe nut 14, the i i journal pin l5f upon which revolubly3 mounted the auxiliarysupporting ywheel 16. there being one ol such upon each le'g' (i.

The wheels 1(3-16 are preferably -formed with sl'irockets or calks 17.around the'circuiniercnlial faces thereof` to prevent slipping.

when the legs ll are supported` upon-thc axle 11i and the machine vii'irepared 4to traverse the .trani track. bill when it is desired tof,

station l'h'e machin(l prior to operating the shovel, the rear oi" tlieuchassisis elevated sufficiently to remove the axle 11 with .its` wheels and by blocking up under. the wheelsy 1(3-16 or allowing them to rest upon the' ground, as preferred, the rear end of the" chassis supported ,upon said auxiliarjv wheels. e that a train .car may be run in upon .its track beneath the machine i'or loadingvpurifioscs.

As a 4n 2ans for raising and lowcringtl'ie rear endet the chassis-for llhc `adjusln'icnt previously described. I provide within the end channel 'a screw threaded hlock J8 through which vertically extelnd's a 'simi-` ll'ie'sewheels remain id lc and e are j above a level withtheitop of the train rails,

v this adjustment it isaii'iilentf bar or post, indicated by the dotted linesy :wf

is set up under the jack head 2() and the `hand wheel revolved vin a manner to withdraw the jack :rod lf) fromk its bearing, it will cause the end ot the chassis to be lifted` and such liftingwhen properly conlini'icd l...

will freethe legs (3f-( "from engagement with their supporting axle'll, as previously slated. Then :the n'ialchine may he lowered to rest upon its auxiliary wheels 1li-16.y

' lVhile l have shown the support for the jack a s heing apost or rod, it is evident vthat a tram ca r such as illustrated at 2? might he run up underneath the jack and hy suitable hlocking heing placed thereupon, the end of the chassisk thus elevated. In fact, the,

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l end of the chassis isallowed to remain thus jacked up upon a tram car, the machine may be transported from place to place thereupon without the use of the axle 11 and its wheels, and it is possible that th'is 4 may be a preferable support for the rear 'ing within the members 1f-1, as clearly illustrated in Fig. 6 of the drawings. The

members 1 1 are preferably formed ofv channel iron and the frame 25 of the carringe of angle iron, the object being :sim-

. However it is understood that the line 29 plicit-y'of construction.

The members 1-1 are shownas beinginclined downwardly towardthe'front of the chassis, one object of which is to cause the reciprocating carriage to normally remain by gravity at the forward end vof the chassis and thus require no' power for such purpose` Upon the rear end of the chassis and Securely fixed theretov is a platform 27, upon which is mounted a suitable winding drum 28, having a. rope connection 29 to the rear end of the platform 24 of the reciprocating carriage and whereby the carriage is operated Itoward the naar end of the machine.

might be an endless line running over a sheave block at `the forward end of thema- 4chille. and iliade to operate the carriage in both directions, if pieferred.

I have illiistrated the drum 28 as being operated `by an electric lnotor 30. but it is evident that other forms of motor power might be utilized upon the entire machine,- without departing from the spirit ofthe invention. Upon the platforin 24 is pivotally mounted at 31 the shovel supporting platform 32, it havingr hinged upon Vthe forward cud thereof the shovel cylinder 33 which carries the reciprocal shovel 34. Upon the opposite end of the platform 32 is mountedan electrically operated winding drum 35,-`

similar to the drum 28. and by which the shovel cylinder is oscillated, through the medium of a. suitable line connection 36 between the upper end of the cylinder and the drum 35. A cross arm 37 is rigidly fixed to the platform 32ftransverse the pivotal center 31 thereol and having a handle 3S at each end whereby the platform 32 with its entireshovel mechanism may be manually trained or positioned upon its pivot 31 for guidance of the shovel when working.

lt is to be understood that the machine as illustrated is for use within a tunnel approximately eight feet square and many parts of the mechanism are readily adjustable' by hand. lvertically extending stops 39iareg-txed to the sides of the members 1 and designed to 'contact that portion of the discharge therein. Any form of controlling means such as a rheostat oiswitch may be located upon the sides of the' machine, as at 4.0, where the power which operates the various parts of the mechanism may be controlled. The

form of shovel .and accompanying cylinder illustrated in the drawings are well known .in the art and do not constitute part of my present invention, as it is evident various forms of such may be employed without departing from the spirit of the invention.

In ordinary operation the complete ma,

chine is transported upon the tram track,

its rear end being supported either upon a,

tram car or upon its removably adjustable truck axle 11, and its accompanying wheels, as above described. to the place of operation. Thevrear end is then elevated by the jack screw 19` the auxiliary supporting wheels 164-16` then blocked up and thepreviously utilized supporting means removed, from thereunder. .The wheels 5-5 and 16-16 a re then suitably blocked against revolution, a. tram car run beneath the chassis to be loaded, the line 29 slacked'o, which will permit the carriage 25 to run by gravity to the forward end of t"i lr4 chine, the line 36 then slacked o, and tuepiatform 32 trained to 'the ldesired position 0f the shovel 3l, which maybe adjusted within its cylinder 33 to any desired position, and in a manner common to the art, when it. is ready for elevation. Then the drum 35 is put into action which will cause the line 36 to draw the cylinder 33 down parallel with the platform 32, thus raising the shovel against the material to be excavated and filling Same. The drum 28 is then set in motion causing c raft upon the line 29, which will draw the carriage 25 toward the rear of the machine to `its destination, when theshovel 34 will then be positioned directly over the tram lcar 23 and its loadautomatically dumped therein. saidautomatic dumping being accomplished in any damned manner and which isrcommon in the art.

Having thus described my invention whatl l claim as new and denim to secure by Letters Patent, is: l

1. In a tunneling machine described, the combination witha chassis having` a reciprocal carriage therein-.car

of the charactery yingi a `pivoted shovel thereupon, of `1.30

ing wheelsv rmanently mountedwithin the forward en ofthe chassis-.and designed to l:traverse a. tramtrack, similar-.wheels and of a like gage supporting-the rear endof the chassis. but removably mounted therein, a third pair of wheels of considerably wider gage than that ofthe tram track fixed to the rear end of the chassis ,and designed yto traverse a temporary track and means for vertically .adjusting the rear 'end of thev lchassis for mounting itupon the temporary g track whereby tram cars may be run 1n under the chassis and loaded bythe shovel lthx'ou h the top thereof.

2; he combination with a chine'chassis of permanently mounted tram 'track wheels in the forward end thereof,

wheels ofthe same gage as the Afirst-men- .20' tioned wheels removably mounted in ythe rear end, a' third pair of vwheels of considerably greater gage than the other mentioned wheels mounted in the rear end of the chassis anddesigned to engage a temporary track and means? for vertically ad justing the rear end of the chassis, to rest upon said wider gaged. wheels whereby trani cars may be run upon the tram track beneath l the chassis for loadingpurpos'es` 3. The combination with a tunneling machine, having-a chassis mounted upon wheels and designed to traverse -a tram track,' of wheels permanently mounted in the front of the.` 'chassis andl esigned to traverse the track, a second pair of wheels of the saine gage as the track but'removably mounted within the rear of the chassis, a third pair of v wheels of considerably wider gage than the track for support o chassis independent of the-tram track when -the second pair of wheels are removed and A means'forvertically adjusting the rear' end the rear end of the tunnelingl ma- Iof the chassis, for removal of the second pairof-Wheels, to admit 'of tram cars being run under the chassis for loading purposes.

g 4.' A machine of the character described,A IcomErisi'ng a frame having permanent tram trac engaging wheels at its forward end, removable similar wheels at its opposite end, a pair of auxiliar wheels for supporting the rear end of the rame from either side of the tram track, when the removable Wheels are permanently fixedl tram'track wheels in the forward end, `a pair'of removable similar :ast

`wheels' in' the rear end, and a pair of aux- 4 iliary wheels adjacent the removable wheels for supporting the rear end of the chassis when spanning the track to admit of tram cars passing' thereunder.. foi' loading purs. n g. v 6. The combination with a tunneling ina- A chine chassis of the character described, hav ing an inclined upper shovel supporting deck, of means for portably supormg-the an '.means entire chassis upon a tram trac for portably supporting one cnd independent of the track whereby tram. cars'may be assed in under the end thus s'upportedto )e loaded by the shovel upon the inclined deck when desired.

" In testimony'whereof I hereunto aiiix my signature in the presence of two witnesses.

- SAMUEL HOAR.

Witnees:

WIJ. ScHULzE, WM. J. Autumn. 

